churchman



(No Model.)

T. G. OHU'ROHMAN.

NOZZLE.

N0.259,667. PatentedJHneiO, 1882.

N. PETERS. Pholo-Ulhographer, Washington a. a

NITED STATES THOMAS C. CHURCHMAN, OF SACRAMENTO, CALIFORNIA.

NOZZLE.

SPECIFICATION forming part of Letters Patent No. 259,667, dated June 20,1882.

Application filed January 30, 1882. (No model.)

To all whom it may concern Be itknown that I, THOMAS C. OHURQHMAN, ofSacramento city, in the county of Sacramento and State of Ualifornia,have invented a new and useful Improvement in Nozzles, which improvementis fully set forth in the following specification and accompanyingdrawings, in which- Figure l is a longitudinal sectional view of thenozzle. Fig. 2 is a perspective view of the core. Fig. 3 is alongitudinal sectional view of a modified form of the nozzle. Fig. 4 isa view of the core-head, and Fig. 5 is a crosssectional view of thenozzle through the line of Fig. 1.

The object of my invention is to provide an improved hose-nozzle.

In the ordinary nozzle as now constructed the water on emerging from thenozzle gradually begins to spread and spray, and the desideratum is toconstruct a nozzle which will deliver the water in a solid streamfarther than the nozzles now in use. Investigation shows that a streamof water passing through a nozzle assumes a circular or spiral motion toacertain degree, and the water, therefore, as it leaves the nozzle, hasa tendency to separate, owing to the centrifugal force caused by thiscircular motion. It is also evident that the water at the point of thenozzle is very much compressed, owingto the taper of the nozzle within,so that the water as it is ejected is suddenly permitted to expandbeyond the nozzle, which in a measure accounts for the spraying sofrequently noted.

To obviate and remedy these objections I have invented thewithindescribed nozzle, which consists in having a core provided withflanges or leaves within the nozzle to form separate channel-ways forthe water, said core being so arranged as to project slightly beyond themouth of the nozzle and terminate in an abrupt point, as will behereinafter fully set forth.

Referring to the accompanying drawings, Fig.1represents one form ofthenozzle or shell, made in three parts, A, B, and C. A disk or head, 1),having openings D, is placed in the large or rear end of the nozzle orthis head may be cast with the rear part, A, of the nozzle. Centrallythis disk is provided with a screw-threaded hole, G. A core,.E, havingpreferably the same taper as the shell of the nozzle, is provided at therear end with a screwthreaded stud, G, to enter the screw-threaded holeG. This core extends to the discharge end of the nozzle and terminatesin an abrupt taper, projecting but slightly beyond the end of thenozzle. Projecting from the core E are three or more flanges or leaves,F, which are intended to form separate and independent channel-ways forthe egress of the water.

Fig. 3 represents my improvement applied to the ordinary nozzle. In thisinstance the nozzle is constructed in two parts, B and J, although I donot considerthis necessary, since the core E can be inserted from therear end of the nozzle, as is obvious. A nozzle pro vided with theseseparate channel-ways will effectually prevent the water from assuming aspiral motion in its route through the nozzle. The water on reaching theend of the nozzle entirely surrounds the end of the core, so that whenit is ejected from the nozzle there is a vacuum formed by the end of thecore. The water being greatly compressed and having a tendency to expandwill, instead of expanding outwardly, seek to fill up the vacuum made bythe end of the core. Hence the spraying and spreading from this causewill also in a measure be avoided. The principal features of myinvention, therefore, areto ejectwater from a nozzle straight and directwithout a spiral motion, and to provide for expansion toward the centerof the stream-body, as shown.

Having described myinvention, whatIclaim as new, and desire to secure byLetters Patent, 1s

A nozzle for hose, having within a tapering core provided with flangesor leaves which terminate a short distance back of the muzzle, said coreextending to and projecting slightly beyond the discharge end of thenozzle, terminating in an abrupt taper, substantially as and for thepurpose herein shown.

In testimony that I claim the foregoing I have hereunto set my hand inthe presence of witnesses.

THOMAS CURTIS GHURCHMAN.

Witnesses:

T. L. AoocK, DUNCAN BEAUMONT.

